In this photo taken Sept. 12, 2012, Sandy Wiseman is reflected in the rearview mirror in Schaumburg, Ill. Jerry Wiseman and his wife, Sandy, took refresher driving classes to help them stay safe behind the wheel for many more years. More older drivers are on the road, and they face a hodgepodge of state licensing rules that reflect scientific uncertainty and public angst over a growing question: How can we tell if it's time to give up the keys? (AP Photo/Charles Rex Arbogast)